East China Fan Oxidation Fan Selection and Combustion Fan Maintenance

East China Fan Oxidation Fan Selection Combustion Fan Maintenance
Oxidation Fan Selection Hotline
Combustion Fan Maintenance
From the noise spectrum of Roots blower, its noise characteristics can be seen:
Large air volume The noise of Roots blower is a steady-state noise in a wide frequency band. Generally speaking, it is mainly low and medium frequency, especially the medium frequency band is wider.
() The noise peak of a fan with a general flow rate appears in the low and mid-frequency band. The sound intensity of a fan with a large flow rate shifts from low frequency to high frequency.
Judging from the fan noise spectrum, the low-frequency peak appears at Hz and the mid-frequency peak is between Hz and Hz, which is a trough.
(d) In the high frequency band, the sound pressure level generally starts from Hz and gradually decreases with the increase of frequency, and the attenuation amount is about decibels per octave.
The noise spectrum characteristics of the air suction port are basically consistent with the noise spectrum characteristics of the fan itself. Usually it is a low-frequency noise source that does not cause great harm to human hearing. However, because the sound source is located outdoors and the low frequency can spread to far away and has a larger impact.
The air outlet generally has a small pipe diameter and opening, and the high-speed airflow impacts the surrounding air, destroying the stable state of the gas, causing huge disturbances, and forming an outdoor high-frequency noise source.
Thank you for paying attention to our products. If you want to get further information, such as the price of gas pressurized Roots blower, specifications and models of gas pressurized Roots blower, etc., please feel free to contact us at any time. We sincerely invite you to provide the most satisfactory service. Services!
For more knowledge about combustion fans and oxidation fans, please consult Xiao Zhang of East China Fan.
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